Preparing for asynchronous processing of umc page retirement.
Signed-off-by: YiPeng Chai <yipeng.c...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 34 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h | 5 ++++
2 files changed, 39 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index a988360ce3e2..856206e95842 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -2656,6 +2656,25 @@ static void amdgpu_ras_validate_threshold(struct
amdgpu_device *adev,
}
}
+static int amdgpu_ras_page_retirement_thread(void *param)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)param;
+ struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
+
+ while (!kthread_should_stop()) {
+
+ wait_event_interruptible(con->page_retirement_wq,
+ atomic_read(&con->page_retirement_req_cnt));
+
+ dev_info(adev->dev, "Start processing page retirement.
request:%d\n",
+ atomic_read(&con->page_retirement_req_cnt));
+
+ atomic_dec(&con->page_retirement_req_cnt);
+ }
+
+ return 0;
+}
+
int amdgpu_ras_recovery_init(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
@@ -2719,6 +2738,16 @@ int amdgpu_ras_recovery_init(struct amdgpu_device *adev)
}
}
+ mutex_init(&con->page_retirement_lock);
+ init_waitqueue_head(&con->page_retirement_wq);
+ atomic_set(&con->page_retirement_req_cnt, 0);
+ con->page_retirement_thread =
+ kthread_run(amdgpu_ras_page_retirement_thread, adev,
"umc_page_retirement");
+ if (IS_ERR(con->page_retirement_thread)) {
+ con->page_retirement_thread = NULL;
+ dev_warn(adev->dev, "Failed to create umc_page_retirement
thread!!!\n");
+ }
+
#ifdef CONFIG_X86_MCE_AMD
#ifdef HAVE_SMCA_UMC_V2
if ((adev->asic_type == CHIP_ALDEBARAN) &&
@@ -2757,6 +2786,11 @@ static int amdgpu_ras_recovery_fini(struct amdgpu_device
*adev)
if (!data)
return 0;
+ if (con->page_retirement_thread)
+ kthread_stop(con->page_retirement_thread);
+
+ atomic_set(&con->page_retirement_req_cnt, 0);
+
cancel_work_sync(&con->recovery_work);
mutex_lock(&con->recovery_lock);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
index 2cd89328dc73..9c3df9985fad 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
@@ -461,6 +461,11 @@ struct amdgpu_ras {
/* Record special requirements of gpu reset caller */
uint32_t gpu_reset_flags;
+
+ struct task_struct *page_retirement_thread;
+ wait_queue_head_t page_retirement_wq;
+ struct mutex page_retirement_lock;
+ atomic_t page_retirement_req_cnt;
};
struct ras_fs_data {
--
2.34.1
